UV beads

Students use colour-changing beads to check where UV radiation reaches.

Steps

1. Everyone gets a few UV beads on a string.
2. We check the colour in the classroom, in the shade, and in the sun.
3. We test sunscreen and sunglasses.
4. We talk about the ozone layer.

Tip: UV beads cost a few zlotys per pack.

Materials needed

• UV beads (1 pack)